A man was hit by a car following a road rage incident.
Two men in a black Mercedes and the driver of a silver car were involved in an altercation in Two Waters Road, Hemel Hempstead, at around 8pm on Thursday, May 28.
Following the row, the two men got back into the Mercedes and drove off allegedly hitting a man who suffered serious injuries to his back.
Police are appealing for anyone who was in the area at the time and saw the incident, or events prior to it, to get in touch.
Anyone with information can call Det Con Andrew Roseblade via the Herts Police non-emergency number 101, quoting crime reference D1/15/3342. Alternatively contact Crimestoppers, anonymously, on 0800 555 111.